Apparently Amazon will do just one more update to Stanza (according to an email received by someone in the Facebook "Revive Stanza" group) but there will not be any more updates after that.
So, Stanza replacement coders, thats going to give you a bit more time to get up to scratch. So far I am not seeing anything really approaching Stanza's features in any of the pretenders to the throne.
Don't know if this will be visible to anyone not using facebook, one can but try. Its a screenshot of the email received.
Screenie